God Suffering

For a brief moment I grasped this elusive sense of commonality as Catholics and Jews stood together in the former gates of hell listening to sublime music invoking solidarity, compassion and the universal yearning for heaven.

If God is All-Good and All-Powerful, how do we explain the existence of evil? The problem of evil, especially human suffering, exercised classical Muslim theologians as much it does Western philosophers, theologians and scientists today.